
Concept explainers
a)
Interpretation:
The structure of threonine is to be elucidated using normal wedged and dashed line and the presence of two α-carbons in this amino acid gives it two chirality centers.
Concept introduction:
(2S,3R)-2-amino-3-hydroxybutanoic acid or threonine is an amino acid with two α-carbons and hence it has two chiral centers. According to the Fisher projections, the amino acid molecules may be represented using normal, wedged, and dashed lines.
To determine:
The structure of L-threonine using normal, wedged and dashed lines.
b)
Interpretation:
The structure of threonine is to be elucidated using normal wedged and dashed line and the presence of two α-carbons in this amino acid gives it two chirality centers.
Concept introduction:
(2S,3R)-2-amino-3-hydroxybutanoic acid or threonine is an amino acid with two α-carbons and hence it has two chiral centers. According to the Fisher projections, the amino acid molecules may be represented using normal, wedged, and dashed lines.
To determine:
Two possible diastereomers of L-threonine.

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Chapter 26 Solutions
Bundle: Organic Chemistry, 9th, Loose-Leaf + OWLv2, 4 terms (24 months) Printed Access Card
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- A mixture of C7H12O2, C9H9OCl, biphenyl and acetone was put together in a gas chromatography tube. Please decide from the GC resutls which correspond to the peak for C7,C9 and biphenyl and explain the reasoning based on GC results. Eliminate unnecessary peaks from Gas Chromatography results.arrow_forwardIs the molecule chiral, meso, or achiral? CI .CH3 H₂C CIarrow_forwardPLEASE HELP ! URGENT!arrow_forward
- Identify priority of the substituents: CH3arrow_forwardHow many chiral carbons are in the molecule? OH F CI Brarrow_forwardA mixture of three compounds Phen-A, Acet-B and Rin-C was analyzed using TLC with 1:9 ethanol: hexane as the mobile phase. The TLC plate showed three spots of R, 0.1 and 0.2 and 0.3. Which of the three compounds (Phen-A; Acet-B or Rin-C) would have the highest (Blank 1), middle (Blank 2) and lowest (Blank 3) spot respectively? 0 CH: 0 CH, 0 H.C OH H.CN OH Acet-B Rin-C phen-A A A <arrow_forward
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